Bath trap and overflow.



J. A. BLIOHMANN.

BATH TRAP AND OVERFLOW.

APPLICATION FILED rmmo, 191a.

2 SHEETS-SHEET 1.

Patented Apr. 21

COLUMBIA PLANOGRAI'H CO-,W1\SHINGTON. n. c.

J. A. BLIGHMANN. BATH TRAP AND OVERFLOW.

APPLICATION FILED IEBJO, 1913.

Patented Apr. 21, 191

2 SHEETS-SHEET 2.

CQLUMBIA PLAEIOGRAPH c0.,wAsHlN0'roN. I5. c4

ITED STATES PATENT FFTQE.

JOHN A. BLIGHMANN, OF DUBUQUE, IOWA.

BATH TRAP AND OVERFLOW.

roaster Application filed February 10, 1913.

To all whom it may concern:

Be it known that 1, JOHN A. BLICHMANN, a citizen of the United States, residing at Dubuque, in the county of Dubuque and State of Iowa, have invented certain new and useful Improvements in Bath Traps and ()verflows, of which the following is a speciiication.

My invention relates to waste, and overflow for lavatory basins and bath tubs and one of the objects is to provide means for sealing the trap against all sewer gas even though the siphon should draw off all the water in the trap.

Another object is to provide a waste trap with a perfect seal in one fixture without having a separate trap below the standing or secret waste or at one side, in connection with a standing or secret waste for a bath tub and lavatory.

The following specification will point out in detail in what it consists, its manner of construction and mode of operation, when read in connection with the drawings accompanying the same and forming a part hereof.

Figure 1 is a vertical section of the device. Fig. 2 is a vertical section when attached to a lavatory basin. Fig. 3 is a vertical section of a form without the inner tube. Fig. 4 is a horizontal section through the bulb and waste pipe. Fig. 5 is a horizontal section through the two tubes taken on a line X-X of Fig. 1.

Like characters of reference denote corresponding parts in each of the figures.

Referring to the drawings 2 designates the outer waste pipe tube. The lower end of the tube 2 is provided with screw threads 4 by which it is attached to a bulb 5. The bulb which is preferably spherical in form has in one side an opening 6 and is provided with screw threads 8. Around the opening is secured the drain pipe 10 provided with an elbow 12 extending to and opening into the base of the bath tub or lavatory basin. Into this elbow is secured a screen 14 provided with the opening 15. I

At the base of the bulb 5 around the neck of the opening 16 is secured a drain pipe 18, that connects with the sewer. On the inside of the bulb facing the opening 6 is a partition 20 that slants up from the bottom of the opening 6 to the top of the vertical opening 22. into this vertical opening 22 is screwed a tube 24 with the portion 25 ex- Specification of Letters Patent.

Patented Apr. 21, 1914.

Serial No. 747,416.

tending downward and the upper end 26 beveled out to form a valve seat in which rests a ball 28. The ball is preferably made of vulcanized hard rubber and adapted to float. Below the tube 24 and on one side is a partition 30 and on the side of the tube 24 and the beveled portion 26 is a partition 32 that is cast integral with the bulb and projects up to the top of the bulb and higher than the upper surface of the drain pipe 10 for purposes to appear hereinafter. In the side of the bulb 5 is an opening which is provided with a cover 62; the use of which is to furnish a convenient means for cleaning out the siphon, if necessary.

Within the tube 2 is another tube 35 that preferably may be widened at the lower end 36 and rests on the beveled seat 26 of the tube 24, and surrounds the ball. At the top of the tube 35 is a knob or handle 38 which is provided with a shoulder 40, that rests upon a ferrule 42 secured to the top of the tube 2, when the lower end 36 rests upon the seat at 26. The ferrule is provided with a vertical slot 44 which is adapted to be engaged by a tenon'45 secured to the tube 35, which tenon slides up and down in the slot and when the tube is drawn up and off from the seat 26 and turned a trifle the tenon will rest upon the ferrule 42 and hold up the pipe 35 allowing the waste to enter around the ball.

In Fig. 3 is shown the same trap on ordinary overflow and it has the same outer pipe but no inner pipe forming the ball cavity and the waste drain pipe 10 has a plug 50.

The manner of operating my device is substantially as follows: Starting with the bath tub or lavatory bowl filled with water and the inner tube down with the increased por tion or lower end resting upon the valve seat at 26, the operator grasps the knob 38 and lifts the tube 35 and at the same time draws the tenon 45 up through the groove 44 and then turns it a little to one side letting the tenon rest upon the end of the ferrule 42. This raises the increased or lower portion 36 off from the seat and allows the water from the bath tub or lavatory bowl to pass through the openings 15 and through the tube 10 into the space 55 up around the ball 28, and since the ball will float it will rise up to the position shown in dotted lines, on top of the water and allow the water to pass down through the tube 24 against the partition 30 and then rise up over the upper end of the partition and How down into the space 7 between the partition 30, and the wall of the creased portion to rest upon the valve seat at 26, and the shoulder 40 on the top of the ferrule 42. As the water passes out from beneath the ball, the ball will drop down until it settles upon the valve seat 26, and shut ofi any further flow of water. If the siphon should by any means withdraw all of the water in the space above the partition 30 then there would be a partial vacuum which would hold the ball 28 firmly upon the valve seat 26, and not permit any sewer gas to pass up around it.

It will be seen that when the inner tube 35 is let down and the increased or lower portion rests upon the valve seat at 26, that no water can pass into the space around the ball 28 from the tube 10. If the bath tub or lavatory bowl be filled until the water rises up in the outer pipe 2 until it reaches the openings then the water will pass through the openings 65 into the inner tube and down around the ball 28. In'Fig. 3 the operator simply draws the plug 50 and the water passes the same way and operates the same as in Fig. 1. If there is an overflow from the tub then it will pass through the openings at the top of the tube' 2 and down around the ball 28 and out through the tube 24.

It will be noticed that the waste water from the bowl'passes down around the ball 28, through the tube 24: before it passes into the siphon and this is an important feature not only in controlling the gas but aiding in preventing any failure of the siphon.

It will be seen by this mode of construction that the siphon and all the appliances for sealing against the sewer gas is contained in the bulb 5, and further that if the siphon should fail for any reason then the sealing against the escape of the sewer gas will always remain.

Having now described my invention what I claim is 1. In a device of the character described, a

basin, a bulb, a ball valve in the bulb, a tube connected to the bulb and opening directly upon the top of the ball valve, a waste pipe connected to the bulb and set substantially in the same horizontal plane with the ball valve, and a siphon in the bulb connected to and receiving the waste water from the base of the outlet of the ball valve.

2. In a device of the character described, an outer tube, a bulb, to which the outer tube is connected, a siphonwithin the bulb, a ball valve within the bulb, and an inner tube adapted to surround the ball and control the entrance of the water into the ball cavity around the ball.

- 3. In a device of the character described, a bulb, provided with a compartment therein, a ball valve in the compartment, a tube con nected to the bulb and opening directly into the compartment upon the top of the ball valve, a waste pipe connected to the bulb and set in substantially the same horizontal plane with the ball valve and having water communication directly into the compartment of the ball valve, and a siphon in the bulb connected with the base of the outlet of the ball valve.

4. In a device of the character described an outer tube, a bulb to which the tube is attached, a siphon within the bulb, a waste pipe leading to the siphon, a ball valve between the waste pipe and siphon, and an inner pipe adapted to be seated around the ball valve and control the waste water that enters the siphon through the ball valve.

5. In a device of the character described, a bulb, an outer tube connected with the bulb, a siphon within the bulb, a ball valve at the entrance to the siphon and. an inner tube seated around the ball upon the valve seat said tube provided with openings near the top through which the overflow from the basin is delivered to the siphon through the ball valve.

6. In a device of the character described and in combination with a lavatory or bath tub, a bulb, an outer tube connected with the bulb, a siphon within the bulb, a waste drain pipe connected with the basin, :1 ball valve between the waste pipe and the siphon, and an inner tube provided with openings near its top and adapted to surround the ball of the valve and rest upon the ball valve seat and control the entrance of the water from the waste pipe into the ball cavity around the ball.

7. In a device of the character described, a bulb, a ball valve in the bulb, a tube connected to the bulb and opening directly above the top of the ball valve, a waste pipe set substantially in the same plane as the ball valve and having water comi'minication around the top of the ball valve and down around the valve, and a siphon in the bulb connected to the base of the outlet of the ball valve, wherebythe water is taken from the waste pipe downward around the ball valve and upward into the siphon.

In testimony whereof I aifix my signature in presence of two witnesses.

JOHN A. BLIOHMANN. IVitnesses M. M. CADY, B. M. HENSGHEL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

, Washington, D. G." 

